When using slipper pistons there are a lot of stories around, but most of these tales have come from using inferior products.
SBD have used Omega slipper pistons for many years now and find they are, in fact, more reliable and create less wear than any other design of piston, whether used in rally, race, sprint or hillclimb engines.
When you wish to produce the ultimate engine, the Omega slipper piston would always be our first choice.
SBD have taken all the latest advancements in technology and together with the improvements they have discovered from their engine developments used this to design a completely new piston for the ever popular 2.0L XE. Omega have produced a completely optimised forging, it has significantly increased strength over any piston SBD have produced in the past and great care has been taken to ensure no machining is required to the internal structure in order to maintain maximum strength.
SBD have reduced the pin size from the previous slipper design of 20mm down to 18mm (STD is 21mm), and then been able to reduce the piston pocket depth due to their advanced cam designs, this has allowed SBD to reduce piston crown height to improve flame travel within the combustion area and yet still maintain optimum compression.
Piston weights as follows (including rings, pin and circlips);
86mm – 298g
87mm – 307g
88mm – 314g